Car-axle box



(No Mbdel.)

D. S. STIMSON.

OAR AXLE BOX.

Patented July 2, 1889.

WI NESSES m m I flttorney N. PETERSv Fhalolilhcgraphun Wisbillgi' D. C.

UNITED STATES PATENT OFFICE.

DAVID S. STIMSON, OF KITTERY, MAINE.

CAR-AXLE BOX.

SPECIFICATION forming part of Letters Patent No. 406,151, dated July 2, 1889.

Application filed May 18, 1888. Serial No. 274,236. (No model.)

To all whom it may concern.-

Be it known that 1, DAVID S. STIMSON, a citizen of the United States, residing at Kittery, in the county of York and State of Maine, (formerly residing at Concord, in the county of Merrimack and State of New Ham pshire,) have invented a new and useful Improvement in Car-Axle Boxes, of which the following is a specification.

This invention relates to a car-axle box having a sectional dust-guard, the sections of which may be drawn out laterally through slots in the sides of the axle-box, as shown and described in Letters Patent of the United States, No. 298,253, issued to me May 6, 1884.

The object of this invention is to provide a holder for a sectional dust-guard, which is simple in construction, and which may be easily detached and replaced for the removal or readjustment of the dust-guard section.

Figure 1 of the accompanying drawings is a perspective view of an axle-box provided with this improvement. Fig. 2 is an elevation of the rear end thereof, partially in section at the corners. Fig. 3 is a perspective View of one of the dust-guard holders, in which the bar and spring are in separate pieces. Fig. 4 is a perspective view of one of the dust-guard holders, in which the bar and spring are in the same piece.

Similar letters of reference indicate correspondin g parts in the different figures.

The axle-box A is of any ordinary or suit able construction, and is provided at its rear end with a dust-guard chamber and with vertical slots in the opposite sides of said chamber, through which the sections of the dustguard are inserted and removed, as set forth in my previous patent, above referred to. The axle-box is also provided near its rear end, at the upper corners, with laterally-project ing ears D, and at its lower corners with similar laterally-projecting ears D. These ears are provided, respectively, with elongated slots at and a. The slots a are provided at their outer ends with curved or angular locking-ribs The dust-guard B, constructed of wood or other suitable material, is composed of sec tions, which, when the dust guard is in its normal position, are separable or adapted to move apart in a horizontal direction, the dustguard being divided from its .upper to its lower edge, preferably in a vertical line. Each section of the dust-guard is provided at its inner end with a semicircular recess to enable the sections, when in position in the dustguard chamber, to close around the dustguard bearing of the axle. The concaved edges of the inner ends of the sections are preferably provided with a groove f for the insertion of a packing g of vulcanized asbestus or other suitable material. The sections of the dust-guard are held in place by the dust-guard holders 0, disposed at the sides of the axle-box opposite the dust-guard chamber. Each of these holders consists of a vertical bar which is provided at its upper end with a hook c, which supports the bar in the ear D, and at its lower end with a curved or V- shaped notch (Z, which engages the rib e in the slot a. The upper hooked end engages one of the slotted top ears D, and the lower notched end engages one of the slotted bottom ears D. Each holder also comprises a spring which may be inherent in the bar itself, as shown in Fig. 4., or in a separate -piece,-as Z), bolted to the bar, as shown in Figs. 1, 2, and 3. In the latter case the semielliptic spring I) is preferably provided with flanges b, which project over the sides of the bar and prevent the spring from turning on its bolt out of position. The hook c prevents the dust-guard holder from falling out of place, and the rib e, engaging the notch of the holder, prevents it from being thrown up out of position. The hook 0 preferably projects laterally beyond the end of the ear D, in po sition to be struck by a hammer for raising the holder to withdraw it.

In applying this improved dust guard holder, it is held in horizontal position, and the hook c at the upper end thereof is hooked into the slot h of the ear D, and the body of the holder is then raised and simultaneously swung into vertical position, and the lower end thereof is then inserted in the slot at of the ear D. The holder then bears against the end of the dust-guard section and holds it in the dust guard chamber. The tension of the holder forces the notch cl into engagement with the rib e of the ear D. When the dust-guard is to be removed for renewing the packing or for any other purpose, the holder may be disengaged from the ear D by a blow of a hammer on the laterally-projecting end of the hook c, and the said hook may then be disengaged from the ear D.

The hook c and notch (Z may be dispensed with in case the spring-holder is sufiiciently stiff to retain itself in place by frictional contact with the ears.

I claim as my invention- 1. The combination of an axle box provided with a dust-guard chamber having vertical slots in its opposite sides and with lateral slotted ears adjacent to said chamber, a sectional dust-guard adapted to be inserted or withdrawn in sections through the Vertical slots in the sides of the chamber, and spring-holders engaging the slots of said ears and pressing upon the flanges or outer ends of the dust-guard sections.

2. The combination of an axle-box provided with a dnstrguard chamber having vertical slots in its opposite sides and with lateral slotted ears adjacent to said chamber, a sectional dust-guard adapted to be inserted or withdrawn in sections through the Vertical slots in the sides of the chamber, and springholders engaging the slots of said ears and pressing upon the flanges or outer ends of the dust-guard sections, each of said holders being provided with a hook at its upper end and with a notch at its lower end for engaging the slotted ears.

3. The combination of an axle-box provided with a dust-guard chamber and with laterally-projecting slotted ears adjacent to said chamber, a sectional dust-guard, bars engaging said slotted ears, and springs interposed between said bars and the outer ends of the sections of the dust-guard.

4. The combination of an axle-box provided with a dust-guard chamber and with laterally-projecting slotted ears adjacent to said chamber, a sectional dust-guard, bars provided with hooks engaging the upper slotted ears and with notches engaging the lower slotted ears, and springs interposed between said bars and the ends of the dust-guard.

5. The combination of an axle-box provided with a dust-guard chamber and with laterall projecting slot-ted ears adjacent to said chamber at the top and bottom of the box, the cars at the bottom being provided with ribs at the outer ends of their slots, a sectional dust-guard, and spring-holders for retaining the dust-guard sections, said holders being provided at their upper ends with hooks, which engage the cars at the top of the box, and at their lower ends with notches which engage the ribs of the cars at the bottom of the box. DAVID S. STIMSON. Witnesses:

F. G. SoMEs, 0. A. WEED. 

